Theorem lmodvs0 14326

Description: Anything times the zero vector is the zero vector. Equation 1b of [Kreyszig] p. 51. (Contributed by NM, 12-Jan-2014.) (Revised by Mario Carneiro, 19-Jun-2014.)

Hypotheses

Ref	Expression
lmodvs0.f	|- F = (Scalar ` W )
lmodvs0.s	|- .x. = ( .s ` W )
lmodvs0.k	|- K = ( Base ` F )
lmodvs0.z	|- .0. = ( 0g ` W )

Assertion

Ref	Expression
lmodvs0	|- ( ( W e. LMod /\ X e. K ) -> ( X .x. .0. ) = .0. )

Proof of Theorem lmodvs0

Step	Hyp	Ref	Expression
1		lmodvs0.f	. . . . 5 |- F = (Scalar ` W )
2	1	lmodring 14299	. . . 4 |- ( W e. LMod -> F e. Ring )
3		lmodvs0.k	. . . . 5 |- K = ( Base ` F )
4		eqid 2229	. . . . 5 |- ( .r ` F ) = ( .r ` F )
5		eqid 2229	. . . . 5 |- ( 0g ` F ) = ( 0g ` F )
6	3, 4, 5	ringrz 14047	. . . 4 |- ( ( F e. Ring /\ X e. K ) -> ( X ( .r ` F ) ( 0g ` F ) ) = ( 0g ` F ) )
7	2, 6	sylan 283	. . 3 |- ( ( W e. LMod /\ X e. K ) -> ( X ( .r ` F ) ( 0g ` F ) ) = ( 0g ` F ) )
8	7	oveq1d 6028	. 2 |- ( ( W e. LMod /\ X e. K ) -> ( ( X ( .r ` F ) ( 0g ` F ) ) .x. .0. ) = ( ( 0g ` F ) .x. .0. ) )
9		simpl 109	. . . 4 |- ( ( W e. LMod /\ X e. K ) -> W e. LMod )
10		simpr 110	. . . 4 |- ( ( W e. LMod /\ X e. K ) -> X e. K )
11	2	adantr 276	. . . . 5 |- ( ( W e. LMod /\ X e. K ) -> F e. Ring )
12	3, 5	ring0cl 14024	. . . . 5 |- ( F e. Ring -> ( 0g ` F ) e. K )
13	11, 12	syl 14	. . . 4 |- ( ( W e. LMod /\ X e. K ) -> ( 0g ` F ) e. K )
14		eqid 2229	. . . . . 6 |- ( Base ` W ) = ( Base ` W )
15		lmodvs0.z	. . . . . 6 |- .0. = ( 0g ` W )
16	14, 15	lmod0vcl 14321	. . . . 5 |- ( W e. LMod -> .0. e. ( Base ` W ) )
17	16	adantr 276	. . . 4 |- ( ( W e. LMod /\ X e. K ) -> .0. e. ( Base ` W ) )
18		lmodvs0.s	. . . . 5 |- .x. = ( .s ` W )
19	14, 1, 18, 3, 4	lmodvsass 14317	. . . 4 |- ( ( W e. LMod /\ ( X e. K /\ ( 0g ` F ) e. K /\ .0. e. ( Base ` W ) ) ) -> ( ( X ( .r ` F ) ( 0g ` F ) ) .x. .0. ) = ( X .x. ( ( 0g ` F ) .x. .0. ) ) )
20	9, 10, 13, 17, 19	syl13anc 1273	. . 3 |- ( ( W e. LMod /\ X e. K ) -> ( ( X ( .r ` F ) ( 0g ` F ) ) .x. .0. ) = ( X .x. ( ( 0g ` F ) .x. .0. ) ) )
21	14, 1, 18, 5, 15	lmod0vs 14325	. . . . 5 |- ( ( W e. LMod /\ .0. e. ( Base ` W ) ) -> ( ( 0g ` F ) .x. .0. ) = .0. )
22	17, 21	syldan 282	. . . 4 |- ( ( W e. LMod /\ X e. K ) -> ( ( 0g ` F ) .x. .0. ) = .0. )
23	22	oveq2d 6029	. . 3 |- ( ( W e. LMod /\ X e. K ) -> ( X .x. ( ( 0g ` F ) .x. .0. ) ) = ( X .x. .0. ) )
24	20, 23	eqtrd 2262	. 2 |- ( ( W e. LMod /\ X e. K ) -> ( ( X ( .r ` F ) ( 0g ` F ) ) .x. .0. ) = ( X .x. .0. ) )
25	8, 24, 22	3eqtr3d 2270	1 |- ( ( W e. LMod /\ X e. K ) -> ( X .x. .0. ) = .0. )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1395   e. wcel 2200   ` cfv 5324  (class class class)co 6013   Basecbs 13072   .rcmulr 13151  Scalarcsca 13153   .scvsca 13154   0gc0g 13329   Ringcrg 13999   LModclmod 14291

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-un 4528  ax-setind 4633  ax-cnex 8113  ax-resscn 8114  ax-1cn 8115  ax-1re 8116  ax-icn 8117  ax-addcl 8118  ax-addrcl 8119  ax-mulcl 8120  ax-addcom 8122  ax-addass 8124  ax-i2m1 8127  ax-0lt1 8128  ax-0id 8130  ax-rnegex 8131  ax-pre-ltirr 8134  ax-pre-ltadd 8138

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rmo 2516  df-rab 2517  df-v 2802  df-sbc 3030  df-csb 3126  df-dif 3200  df-un 3202  df-in 3204  df-ss 3211  df-nul 3493  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-int 3927  df-br 4087  df-opab 4149  df-mpt 4150  df-id 4388  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-rn 4734  df-res 4735  df-iota 5284  df-fun 5326  df-fn 5327  df-fv 5332  df-riota 5966  df-ov 6016  df-oprab 6017  df-mpo 6018  df-pnf 8206  df-mnf 8207  df-ltxr 8209  df-inn 9134  df-2 9192  df-3 9193  df-4 9194  df-5 9195  df-6 9196  df-ndx 13075  df-slot 13076  df-base 13078  df-sets 13079  df-plusg 13163  df-mulr 13164  df-sca 13166  df-vsca 13167  df-0g 13331  df-mgm 13429  df-sgrp 13475  df-mnd 13490  df-grp 13576  df-mgp 13924  df-ring 14001  df-lmod 14293

This theorem is referenced by:  lmodfopne  14330  lsssn0  14374